Question: Which galaxy with the Eridanus constellation has the fastest radial velocity?
Paraphrase: Within the Eridanus constellation, what galaxy has the fastest radial velocity?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q318 . ?ent wdt:P2216 ?obj . ?ent wdt:P59 wd:Q10433 } ORDER BY DESC(?obj)LIMIT 5 
Answer: [MAC2016] M0416pf 25, [MMD2015] HFF2P-9-2, [MAC2016] M0416pf 19, [MMD2015] HFF2C-9-3, [MAC2016] M0416pf 103